Six friends - P, Q, R, S, T and U - are sitting around a circular table, facing towards the centre of the table. S is an immediate neighbour of P and T. Q is second to the left of S. If R is an immediate neighbour of P, where is U sitting?

Eight people J, K, L, M, N, O, P, Q are seated around a circular table facing the centre at equal distances in clockwise alphabetical order. If P is seated facing North, in which direction is L facing?

A, B, C, P, S, T and U are sitting in a straight line facing the north. Only three people are seated to the left of S. Only A is seated to the right of B. Only three people are seated between B and C. P is seated at some place to the left of T, but at some place to the right of U. How many people are seated between U and T?